Support HTML5 Input Patterns while creating text field

[vijaykhollam]

Steps to reproduce the issue

1. Go to Admin => Content => Fields => Create new field of type text
2. There is no config for pattern attribute in HTML5

Expected result

We should able to create a custom field with the pattern attribute

Actual result

System information (as much as possible)

Joomla 3.9.11
PHP 7.2

Why

This will improve the usability of the form.
https://www.w3schools.com/tags/att_input_pattern.asp

[vijaykhollam]

Have sent a pull request for same

#25974

[ghost]

Thanks for Report and Pull Request @vijaykhollam. If you do a PR there is no need doing a Report too.

[ghost]

Closed as having Pull Request #25974